i use clear linux on my dell latitude. In the beginning the system was very fast. After installing a few apps, nothing special, docker, chrome, vscode, the system is very slow even if none of the app processes are running.

Starting any App take seconds. For Example opening system preferences. Chrome, Firefox etc. are very slow (web an App)

How can i detect the cause of it? Are there any issues known with my setup? Which logs would watch?

VSCode and Chrome are not available from official repo. How do you install them?

If they’re flatpak packages, theoretically they’s take a bit longer to launch. But usually it won’t be very long.

It also worth mentioning some “background” syncing services, e.g. Dropbox, take a lot of resources especially when they’re newly installed. That’s because they may spawn many threads for download files, and computing hashes.

In any case, you can use htop to view what’s taking up most of your CPU.